FROST-BRDF: A Fast and Robust Optimal Sampling Technique for BRDF Acquisition
Date: January 2024
Authors: Ehsan Miandji, Tanaboon Tongbuasirilai, Saghi Hajisharif, Behnaz Kavoosighafi, and Jonas Unger
Conference or journal: IEEE Transactions on Visualization and Computer Graphics Date : January 2024 Ehsan Miandji, Tanaboon Tongbuasirilai, Saghi Hajisharif, Behnaz Kavoosighafi, and Jonas UngerEfficient and accurate BRDF acquisition of real world materials is a challenging research problem that requires …
N-BVH: Neural ray queries with bounding volume hierarchies
Date: August 2024
Authors: Philippe Weier, Alexander Rath, Élie Michel, Iliyan Georgiev, Philipp Slusallek and Tamy Boubekeur
Conference or journal: SIGGRAPH 2024 Date : August 2024 Philippe Weier, Alexander Rath, Élie Michel, Iliyan Georgiev, Philipp Slusallek and Tamy BoubekeurNeural representations have shown spectacular ability to compress complex signals in a fraction of the raw data size. In …
Practical Appearance Model for Foundation Cosmetics
Date: 2024.07
Authors: Dario Lanza, Juan Raúl Padrón-Griffe, Alina Pranovich, Adolfo Muñoz, Jeppe Frisvad, Adrian Jarabo
Conference or journal: Computer Graphics Forum (EGSR 2024) Date : 2024.07 Dario Lanza, Juan Raúl Padrón-Griffe, Alina Pranovich, Adolfo Muñoz, Jeppe Frisvad, Adrian JaraboWe present an appearance model for cosmetics, in particular for foundation layers, that reproduces a range of …
Blind Localization and Clustering of Anomalies in Textures
Date: 2024.06
Authors: Andrei-Timotei Ardelean, Tim Weyrich
Conference or journal: Conference on Computer Vision and Pattern Recognition (CVPR) Workshops 2024 Date : 2024.06 Andrei-Timotei Ardelean, Tim WeyrichAnomaly detection and localization in images is a growing field in computer vision. In this area, a seemingly understudied problem is …
Navigating the Manifold of Translucent Appearance
Date: 2024.04
Authors: Dario Lanza, Adrian Jarabo, Belen Masia
Conference or journal: Computer Graphics Forum (Eurographics 2024) Date : 2024.04 Dario Lanza, Adrian Jarabo, Belen MasiaThis work presents a perceptually-motivated manifold for translucent appearance, designed for intuitive editing of translucent materials by navigating through the manifold. Classic tools for …
High-Fidelity Zero-Shot Texture Anomaly Localization Using Feature Correspondence Analysis
Date: 2024.01
Authors: Andrei-Timotei Ardelean, Tim Weyrich
Conference or journal: Winter Conference on Applications of Computer Vision 2024 Date : 2024.01 Andrei-Timotei Ardelean, Tim WeyrichWe propose a novel method for Zero-Shot Anomaly Localization on textures. The task refers to identifying abnormal regions in an otherwise homogeneous image. …
Perceptual error optimization for Monte Carlo animation rendering
Date: 2023.11
Authors: Miša Korać, Corentin Salaün, Iliyan Georgiev, Pascal Grittmann, Philipp Slusallek, Karol Myszkowski, Gurprit Singh
Conference or journal: SIGGRAPH Asia 2023 Date : 2023.11 Miša Korać, Corentin Salaün, Iliyan Georgiev, Pascal Grittmann, Philipp Slusallek, Karol Myszkowski, Gurprit SinghIndependently estimating pixel values in Monte Carlo rendering results in a perceptually sub-optimal white-noise distribution of error in …
Neural Prefiltering for Correlation-Aware Levels of Detail
Date: 2023.07
Authors: Philippe Weier, Tobias Zirr, Anton Kaplanyan, Ling-Qi Yan, Philipp Slusallek
Conference or journal: SIGGRAPH 2023 Date : 2023.07 Philippe Weier, Tobias Zirr, Anton Kaplanyan, Ling-Qi Yan, Philipp SlusallekWe introduce a practical general-purpose neural appearance filtering pipeline for physically-based rendering. We tackle the previously difficult challenge of aggregating visibility across many …
Denoising-Aware Adaptive Sampling for Monte Carlo Ray Tracing
Date: 2023.07
Authors: Arthur Firmino, Jeppe Revall Frisvad, Henrik Wann Jensen
Conference or journal: SIGGRAPH 2023 Date : 2023.07 Arthur Firmino, Jeppe Revall Frisvad, Henrik Wann JensenMonte Carlo rendering is a computationally intensive task, but combined with recent deep-learning based advances in image denoising it is possible to achieve high quality …
Affordable method for measuring fluorescence using Gaussian distributions and bounded MESE
Date: 2023.07
Authors: Tomáš Iser, Loïc Lachiver, and Alexander Wilkie
Conference or journal: Optics Express Date : 2023.07 Tomáš Iser, Loïc Lachiver, and Alexander WilkieWe present an accurate and low-cost method for measuring fluorescence in materials. Our method outputs an estimate of the material’s Donaldson matrix, which is a commonly …
The Visual Language of Fabrics
Date: 2023.07
Authors: Valentin Deschaintre*, Julia Guerrero-Viu*, Diego Gutierrez, Tamy Boubekeur, Belen Masia
Conference or journal: Siggraph 2023 Date : 2023.07 Valentin Deschaintre*, Julia Guerrero-Viu*, Diego Gutierrez, Tamy Boubekeur, Belen MasiaWe introduce text2fabric, a novel dataset that links free-text descriptions to various fabric materials. The dataset comprises 15,000 natural language descriptions associated to …
SparseBTF: Sparse Representation Learning for Bidirectional Texture Functions
Date: 2023.06
Authors: Kavoosighafi, Behnaz and Frisvad, Jeppe Revall and Hajisharif, Saghi and Unger, Jonas and Miandji, Ehsan
Conference or journal: Eurographics Symposium on Rendering Date : 2023.06 Kavoosighafi, Behnaz and Frisvad, Jeppe Revall and Hajisharif, Saghi and Unger, Jonas and Miandji, EhsanWe propose a novel dictionary-based representation learning model for Bidirectional Texture Functions (BTFs) aiming at compact …
Practical Temporal and Stereoscopic Filtering for Real-time Ray Tracing
Date: 2023.06
Authors: Henrik Philippi, Jeppe Revall Frisvad, Henrik Wann Jensen
Conference or journal: Eurographics Symposium on Rendering (2023) Date : 2023.06 Henrik Philippi, Jeppe Revall Frisvad, Henrik Wann JensenWe present a practical method for temporal and stereoscopic filtering that generates stereo-consistent rendering. Existing methods for stereoscopic rendering often reuse samples …
Rendering Glinty Granular Materials in Virtual Reality
Date: 2022.12
Authors: Nynne Kajs, Mikkel Gjøl, Jakob Gath, Henrik Philippi, Jeppe Revall Frisvad, Andreas Bærentzen
Conference or journal: ICAT-EGVE 2022 Date : 2022.12 Nynne Kajs, Mikkel Gjøl, Jakob Gath, Henrik Philippi, Jeppe Revall Frisvad, Andreas BærentzenHighly realistic rendering of grainy materials like sand is achievable given significant computational resources and a lot of time for …
Efficient Storage and Importance Sampling for Fluorescent Reflectance
Date: 2022.11
Authors: Q. Hua, V. Tázlar, A. Fichet, A. Wilkie.
Conference or journal: Computer Graphics Forum Vol 42 (2023) Date : 2022.11 Q. Hua, V. Tázlar, A. Fichet, A. Wilkie.We propose a technique for efficient storage and importance sampling of fluorescent spectral data. Fluorescence is fully described by a re-radiation …
On the Influence of Dynamic Illumination in the Perception of Translucency
Date: 2022.09
Dario Lanza, Adrian Jarabo, Belen Masia ACM Symposium on Applied Perception 2022 Abstract Translucent materials are ubiquitous in the real world, from organic materials such as food or human skin, to synthetic materials like plastic or rubber. While multiple models …
3inGAN: Learning a 3D Generative Model from Images of a Self-similar Scene
Date: 2022.09
Animesh Karnewar, Oliver Wang, Tobias Ritschel, Niloy J. Mitra 3DV 2022 Abstract We introduce 3inGAN, an unconditional 3D generative model trained from 2D images of a single self-similar 3D scene. Such a model can be used to produce 3D “remixes” …
EARS: Efficiency-Aware Russian Roulette and Splitting
Date: 2022.07
Authors: Rath, Alexander and Grittmann, Pascal and Herholz, Sebastian and Weier, Philippe and Slusallek, Philipp
Conference or journal: Siggraph 2022 Date : 2022.07 Rath, Alexander and Grittmann, Pascal and Herholz, Sebastian and Weier, Philippe and Slusallek, PhilippRussian roulette and splitting are widely used techniques to increase the efficiency of Monte Carlo estimators. But, despite their …
Polarization-imaging Surface Reflectometry using Near-field Display
Date: 2022.07
Emilie Nogué, Yiming Lin, Abhijeet Ghosh July 2022 Eurographics Symposium on Rendering (EGSR) Abstract We present a practical method for measurement of spatially varying isotropic surface reflectance of planar samples using a combination of single-view polarization imaging and near-field display …
Efficiency-aware multiple importance sampling for bidirectional rendering algorithms
Date: 2022.07
Authors: Grittmann, Pascal and Yazici, Ömercan and Georgiev, Iliyan and Slusallek, Philipp
Conference or journal: Siggraph 2022 Date : 2022.07 Grittmann, Pascal and Yazici, Ömercan and Georgiev, Iliyan and Slusallek, PhilippMultiple importance sampling (MIS) is an indispensable tool in light-transport simulation. It enables robust Monte Carlo integration by combining samples from several …
Affordable Spectral Measurements of Translucent Materials
Date: 2022.07
Tomáš Iser, Tobias Rittig, Emilie Nogué, Thomas Nindel, Alexander Wilkie Eurographics Symposium on Rendering (EGSR) Abstract We present a spectral measurement approach for the bulk optical properties of translucent materials using only low-cost components. We focus on the translucent inks …
ReLU Fields: The Little Non-linearity That Could
Date: 2022.07
Animesh Karnewar, Tobias Ritschel, Oliver Wang, Niloy J. Mitra Siggraph 2022 Abstract In many recent works, multi-layer perceptions (MLPs) have been shown to be suitable for modeling complex spatially-varying functions including images and 3D scenes. Although the MLPs are able …
Wide Gamut Moment-based Constrained Spectral Uplifting
Date: 2022.07
Authors: Lucia Tódová, A. Wilkie, L. Fascione.
Conference or journal: Computer Graphics Forum Vol 41(2022) Date : 2022.07 Lucia Tódová, A. Wilkie, L. Fascione.Spectral rendering is increasingly used in appearance-critical rendering workflows due to its ability to predict colour values under varying illuminants. However, directly modelling assets …
Progressive Denoising of Monte Carlo Rendered Images
Date: 2022.05
Arthur Firmino, Jeppe Revall Frisvad, Henrik Wann Jensen Computer Graphics Forum Abstract Image denoising based on deep learning has become a powerful tool to accelerate Monte Carlo rendering. Deep learning techniques can produce smooth images using a low sample count. …
Differentiable Transient Rendering
Date: 2021.12
Authors: Shinyoung Yi, Donggun Kim, Kiseok Choi, Adrian Jarabo, Diego Gutierrez, Min H. Kim
Conference or journal: Siggraph Asia 2021 Date : 2021.12 Shinyoung Yi, Donggun Kim, Kiseok Choi, Adrian Jarabo, Diego Gutierrez, Min H. KimOur general-purpose differentiable transient rendering framework allows to compute derivates of complex, multi-bounce transient sequences with respect to scene …
A Fitted Radiance and Attenuation Model for Realistic Atmospheres
Date: 2021.08
Alexander Wilkie, Petr Vévoda, Lukáš Hošek, Thomas Bashford-Rogers, Tomáš Iser, Monika Kolářová, Tobias Rittig, Jaroslav Křivánek August 2021 Proceedings of SIGGRAPH • ACM Transactions on Graphics Abstract We present a fitted model of sky dome radiance and attenuation for realistic …
An OpenEXR Layout for Spectral Images
Date: 2021.07
Alban Fichet, Romain Pacanowski, Alexander Wilkie July 2021 Journal of Computer Graphics Techniques (JCGT) Abstract We propose a standardised layout to organise spectral data stored in OpenEXR images. We motivate why we chose the OpenEXR format as basis for our …
Moment-based Constrained Spectral Uplifting
Date: 2021.06
Lucia Tódová, Alexander Wilkie, Luca Fascione June 2021 Eurographics Symposium on Rendering (EGSR) Abstract We propose a technique to efficiently importance sample and store fluorescent spectral data. Fluorescence behaviour is properly represented as a re-radiation matrix: for a given input …
A Compact Representation for Fluorescent Spectral Data
Date: 2021.06
Qingqin Hua, Alban Fichet, Alexander Wilkie June 2021 Eurographics Symposium on Rendering (EGSR) Abstract We propose a technique to efficiently importance sample and store fluorescent spectral data. Fluorescence behaviour is properly represented as a re-radiation matrix: for a given input …
Perception of material appearance: a comparison between painted and rendered images
Date: 2021.05
Authors: Johanna Delanoy, Ana Serrano, Belen Masia, Diego Gutierrez
Conference or journal: Journal of Vision (JoV), 2021, Vol.21(5) Date : 2021.05 Johanna Delanoy, Ana Serrano, Belen Masia, Diego GutierrezPainters are masters in replicating the visual appearance of materials. While the perception of material appearance is not yet fully understood, …
The joint role of geometry and illumination on material recognition
Date: 2021.02
Authors: Manuel Lagunas, Ana Serrano, Diego Gutierrez, Belen Masia
Conference or journal: Journal of Vision Date : 2021.02 Manuel Lagunas, Ana Serrano, Diego Gutierrez, Belen MasiaObserving and recognizing materials is a fundamental part of our daily life. Under typical viewing conditions, we are capable of effortlessly identifying the objects …
Beyond Mie Theory: Systematic Computation of Bulk Scattering Parameters based on Microphysical Wave Optics
Authors: Yu Guo, Adrian Jarabo, and Shuang Zhao
Conference or journal: ACM Transactions on Graphics (SIGGRAPH Asia 2021), 40(6), 2021 Yu Guo, Adrian Jarabo, and Shuang Zhao Light scattering in participating media and translucent materials is typically modeled using the radiative transfer theory. Under the assumption of independent …
